Journal
PHYTOMEDICINE
Volume 20, Issue 10, Pages 797-804Publisher
ELSEVIER GMBH
DOI: 10.1016/j.phymed.2013.03.003
Keywords
Embelin; Anti-hyperglycemic activity; High fat diet plus streptozotocin diabetes; Pro-inflammatory cytokines; Antioxidants; Lipid profile
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Embelin (benzoquinone), an active constituent of methanolic extracts of the fruit of Embelia basal (Myrsinaceae), was studied in high fat diet (HFD)+ streptozotocin (STZ) diabetic rats. Treatment of embelin (25 and 50 mg/kg/day, p.o.) for 3 weeks to HFD + STZ diabetic rats elicited insignificant increase in body weight, reduced the elevated plasma glucose, glycosylated haemoglobin and pro-inflammatory mediators (interleukin 6 and tumour necrosis factor alpha) significantly. Furthermore, embelin treatment at both the doses significantly decreased the elevated malondialdehyde, restored depleted glutathione, antioxidant enzymes, superoxide dismutase and catalase in liver. The increased lipid profiles in HFD + STZ diabetic rats were also reduced by embelin treatment significantly. Embelin treatment to HFD + STZ diabetic rats also improved the altered histoarchitecture of beta-islets of pancreas and hepatocytes. The embelin effect on progression of type 2 diabetes mellitus in rats appears to be through the inhibition of intracellular pro-inflammatory mediators, lowering of lipid profile and amelioration of oxidative stress. Considering the pharmacological activity profile of embelin, it is suggested that embelin be a useful diabetic modulator or adjuvant along with clinically effective anti-diabetic drugs in the treatment of type 2 diabetes mellitus and needs to be clinically evaluated on human subjects. (C) 2013 Elsevier GmbH. All rights reserved.
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